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How to remove an CLFS error


CLFS.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the OS, hardware etc.
The free file information forum can help you determine if CLFS.sys belonging to the Windows system or an application you can trust.

Run a free scan to check for CLFS drivers in need of updating


CLFS.sys file information

The process known as Common Log File System Driver belongs to software Microsoft Windows Operating System by Microsoft (www.microsoft.com).

Description: CLFS.sys is located in the folder C:\Windows\System32. Known file sizes on Windows 7/XP are 247,352 bytes (60% of all occurrences) or 221,800 bytes. http://www.file.net/process/clfs.sys.html 
The driver can be started or stopped from Services in the Control Panel or by other programs. The file is a Windows system file. It is a Microsoft signed file. The program has no visible window. The CLFS.sys file is certified by a trustworthy company. CLFS.sys seems to be a compressed file. Therefore the technical security rating is 0% dangerous.

Recommended: Identify CLFS.sys related errors

Important: Some malware camouflages itself as CLFS.sys. Therefore, you should check the CLFS.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.



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CLFS scanner


Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.

SpeedUpMyPC scans, cleans, repairs and optimizes your computer.


Other processes


CLFS.sys [all]